2-Amino-6-(chloromethyl)-3-cyano-5-(difluoromethyl)pyridine
2-Amino-5-bromo-4-(difluoromethyl)-3-methylpyridine
6-Amino-3-(chloromethyl)-2-cyano-4-(difluoromethyl)pyridine
3-Amino-4-cyano-5-(difluoromethyl)-2-nitropyridine
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